senator lindsey graham blamed a misspelling for the disconnect on dzhokhar tsarnaev's trip to russia. >> i think they did a good job of looking at him. the reason we didn't know he went to russia is because the name was misspelled. >> we are learning about a motive. officials say dzhokhar tsarnaev told investigators it was because of their religious views and not because of ties to terror groups. they got the instructions on how to make the bomb online. i want to bring in the huffington post managing editor amanda turkal. good morning. >> good morning. >> let's start with the congressional briefings. two of them today. what are we expecting? >> i think we -- there are a lot of unanswered questions in the context of the gun control debate. where did the guys get the guns? at the scene of the shootout there were explosives, hand guns and a rifle. did they get it legally or illegally? they did not have a license to own a firearm. how did they get this? a lot of unanswered questions. how much did we know about these guys before the boston bombing? it will be interesting to see what comes